Improvement in hand-pumps



'J.- M. HOLLAND.

Hand-Pump] No. 206,451. Patented July 30; I878.

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WITNESSES i my FOR fi w We/JZ M N @AWW UNITED STATES PATENT FFIG.

JAMES M. HOLLAND, OF WILMINGTON, DELAIVARE.

IMPRCVEMENT IN HAND-PUMPS.

Specification forming part of Letters Patent No. 206,451, dated July 30, 1878; application filed June 13, 1878.

To all whom it may concern:

Be it known that I, JAMES M. HOLLAND, of Wilmington, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Hand- Pumps; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to that class of hand pumps which are made use of for washing windows and sprinkling gardens; and the nature thereof consists in certain construction and combination of parts, all of which is hereinafter more fully explained by reference to the drawings, in which Figure 1 is a sectional side elevation of the pump. Fig. 2 is a side elevation of the pump. Fig. 3 is a sectional plan of Fig. 1. Fig. 4 is a sectional plan of Fig. 2. Fig. 5 is a crosssection of plunger-rod.

This pump consists in the construction of two cylinders, A and B, which are arranged alongside of each other, as shown in the drawing, and they are attached together by means of the connections a a The cylinder A forms the barrel for a plunger, 0, and is arranged at the lower end so as to permit the extension (1., in connection with the connections a and (o to form a chamber, D, when the plate E with valve 0 is in position, and also allows for the second chamber, D, under the plate E. The valve 0 is of the ordinary ball or flap form. At the bottom of the cylinder B is placed a plate, F, having a valve, f. This plate is placed in position before the plate E, as the latter closes all of the bottom in, forming the before-mentioned spaces D and D.

At the upper end of the cylinder Bis the cover G, securely fastened on the cylinder B. This said cover G is provided with a droppipe, G which is made to extend down the center of the cylinder B until it is just clear of the guard of the valve f when a ball-valve is used, or say within one inch of the plate F with any ordinary valve. This pipe Gr passes through the cover Gr, and is provided at its upper end, G with recesses, such as are known in the art, for the purpose of receiving the impress of hose-pipe when the same is wired on. Also, as part of this cover G, or as a separate piece, is the bracket H, supporting the guide H for the plun ger-rod. This is provided with the guide H, to act as a stop for the rod 0,

which has stops O and the end of the plungerrod is provided with a suitable handle. The

plunger is arranged to be packed so that the 1 provided either gaps I or perforations, these being beneath the plate E and in the chamber D at bottom of pump.

Inorder to construct the pump as cheaply as possible, the plunger 0, rod and stops (3 are cast of malleable iron with the handle, and the form (Fig. 5) given illustrates the construction for the purpose of strength.

On the top of the pipe G at G is either screwed or fastened on a piece of hose-pipe having a nozzle, and the operation is simply this, that by working the handle of the rod 0 the water is taken in and fills the chamber D, and by forcing down the plunger the water is discharged through valve f into chamber .8, the valve 0 of plate E preventing the return of the water to the pail or bucket, and upon continuing to operate the-plunger 0 up and down the cylinder A the water is made to rise in the cylinder 13 against the force of the air, which fills the space between the pipe G and interior of the cylinder 13. The water is driven up the pipe G and discharged through the end of the same or the hose and nozzle that may be attached. To hold the pump perfectly secure in the pail or bucket, there is provided the loop or eyelet K at the side. Through this is simply placed a strap.

Having thus described the construction and operation of my invention, what I claim as mine, and desire to secure by Letters Patent of the United States, is as follows 1. In a force-pump, the combination of the cylinder A with cylinder B, having the downward tube G from top Gr arranged with plates E and F and valves f and c, operated by a plunger, 0, with guide, substantially for the purpose set forth.

2. In a force-pump provided with double cylinders A and B, the escape-water tubes formed by connections a and a", substantially as herein shown and described.

two witnesses.

JAMES M. HOLLAND.

Vitnesscs:

BENJAMIN O. POLE, JOHN U. COLE. 

